Force mounting bolts

[Bgbbgb246]

I have a face 120 on a Fisher sv-19 that I am putting a slidemaster jack plate on. During this process I have noticed that that the 1/2" bolts used to mount the engine are a little smaller than the holes in the outboard and the jack plate. As far as I can tell from research, that 1/2-in bolts are pretty standard for just about any large outboard. Is this difference in size meant to be filled up with silicon or 3m 5200 or do I need to get slightly larger bolts to make up the difference in size. It's not a huge difference but definitely noticably a little sloppy when test fitting the bolt in the hole in the jack plate or engine.

 

[jerryjerry05]

Maybe the motor flexed and wore out the holes?

The 120 depending on the year came with 2 different transom mounts.
How about adding a year/serial# or a pic?

They did use sillycone but not to take up the slack..

Was this motor original to the boat?